Use vpid_sync_context() directly for flows that run if and only if
enable_vpid=1, or more specifically, nested VMX flows that are gated by
vmx->nested.msrs.secondary_ctls_high.SECONDARY_EXEC_ENABLE_VPID being
set, which is allowed if and only if enable_vpid=1. Because these flows
call __vmx_flush_tlb() with @invalidate_gpa=false, the if-statement that
decides between INVEPT and INVVPID will always go down the INVVPID path,
i.e. call vpid_sync_context() because
"enable_ept && (invalidate_gpa || !enable_vpid)" always evaluates false.
This helps pave the way toward removing @invalidate_gpa and @vpid from
__vmx_flush_tlb() and its callers.
No functional change intended.
Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
---
arch/x86/kvm/vmx/nested.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 657c2eda357c..19ac4083667f 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -2466,7 +2466,7 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
if (nested_cpu_has_vpid(vmcs12) && nested_has_guest_tlb_tag(vcpu)) {
if (vmcs12->virtual_processor_id != vmx->nested.last_vpid) {
vmx->nested.last_vpid = vmcs12->virtual_processor_id;
- __vmx_flush_tlb(vcpu, nested_get_vpid02(vcpu), false);
+ vpid_sync_context(nested_get_vpid02(vcpu));
}
} else {
/*
@@ -5154,17 +5154,17 @@ static int handle_invvpid(struct kvm_vcpu *vcpu)
__invvpid(VMX_VPID_EXTENT_INDIVIDUAL_ADDR,
vpid02, operand.gla);
} else
- __vmx_flush_tlb(vcpu, vpid02, false);
+ vpid_sync_context(vpid02);
break;
case VMX_VPID_EXTENT_SINGLE_CONTEXT:
case VMX_VPID_EXTENT_SINGLE_NON_GLOBAL:
if (!operand.vpid)
return nested_vmx_failValid(vcpu,
VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID);
- __vmx_flush_tlb(vcpu, vpid02, false);
+ vpid_sync_context(vpid02);
break;
case VMX_VPID_EXTENT_ALL_CONTEXT:
- __vmx_flush_tlb(vcpu, vpid02, false);
+ vpid_sync_context(vpid02);
break;
default:
WARN_ON_ONCE(1);
--
2.24.1
